The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2020
Filed:
Jul. 10, 2015
Applicant:
Gea Refrigeration Germany Gmbh, Berlin, DE;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 49/22 (2006.01); F04C 28/24 (2006.01); F04C 28/06 (2006.01); F04C 29/12 (2006.01); F04C 14/26 (2006.01); F04C 14/06 (2006.01); F04C 18/16 (2006.01); F04C 29/00 (2006.01);
U.S. Cl.
CPC ...
F04C 29/126 (2013.01); F04C 18/16 (2013.01); F04C 29/0092 (2013.01); F04C 2240/30 (2013.01);
Abstract
A screw compressor, in particular for refrigeration systems, comprising a compressor housing () which at least partly encloses the compressor, an integrated suction gas filter () and a non-return valve () that is to be actuated by pressurized gas; the compressor housing () has grooves, in particular drilled or cast ducts () to which pressurized gas can be fed in order to control the non-return valve ().